92 lines
2.1 KiB
Ruby
92 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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class Pubsubhubbub::DeliveryWorker
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include Sidekiq::Worker
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include RoutingHelper
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sidekiq_options queue: 'push', retry: 3, dead: false
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sidekiq_retry_in do |count|
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5 * (count + 1)
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end
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attr_reader :subscription, :payload
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def perform(subscription_id, payload)
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@subscription = Subscription.find(subscription_id)
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@payload = payload
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process_delivery unless blocked_domain?
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end
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private
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def process_delivery
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payload_delivery
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if response_successful?
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subscription.touch(:last_successful_delivery_at)
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elsif response_failed_permanently?
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subscription.destroy!
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else
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raise "Delivery failed for #{subscription.callback_url}: HTTP #{payload_delivery.code}"
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end
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end
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def payload_delivery
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@_payload_delivery ||= callback_post_payload
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end
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def callback_post_payload
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HTTP.timeout(:per_operation, write: 50, connect: 20, read: 50)
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.headers(headers)
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.post(subscription.callback_url, body: payload)
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end
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def blocked_domain?
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DomainBlock.blocked?(host)
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end
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def host
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Addressable::URI.parse(subscription.callback_url).normalize.host
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end
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def headers
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{
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'User-Agent' => 'Mastodon/PubSubHubbub',
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'Content-Type' => 'application/atom+xml',
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'Link' => link_headers,
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}.merge(signature_headers.to_h)
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end
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def link_headers
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LinkHeader.new([hub_link_header, self_link_header]).to_s
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end
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def hub_link_header
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[api_push_url, [%w(rel hub)]]
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end
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def self_link_header
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[account_url(subscription.account, format: :atom), [%w(rel self)]]
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end
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def signature_headers
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{ 'X-Hub-Signature' => payload_signature } if subscription.secret?
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end
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def payload_signature
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"sha1=#{hmac_payload_digest}"
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end
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def hmac_payload_digest
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OpenSSL::HMAC.hexdigest(OpenSSL::Digest.new('sha1'), subscription.secret, payload)
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end
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def response_failed_permanently?
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payload_delivery.code > 299 && payload_delivery.code < 500 && payload_delivery.code != 429
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end
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def response_successful?
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payload_delivery.code > 199 && payload_delivery.code < 300
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end
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end
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